{\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{6}{c}}
\hline\hline
&\textbf{Out}&\textbf{In}&\textbf{Diff.}&\textbf{p-val}&\textbf{\#Obs.}&\textbf{\#Obs.}\\
&\textbf{Group}&\textbf{Group}&&&\textbf{Out}&\textbf{In}  \\
&\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&   \multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}\\
\hline
Prediction for Female Workers &  31.70 &  32.79 &  -1.09 &   0.13 &          344 &          233 \\
& (8.78) & (7.81) & & & & \\
Prediction for Male Workers &  34.68 &  33.60 &   1.09 &   0.12 &          233 &          344 \\
& (6.59) & (9.20) & & & & \\
Prediction for Indian Workers &  36.09 &  32.06 &   4.04 &   0.00 &          392 &          185 \\
& (7.10) & (12.67) & & & & \\
Prediction for US Workers &  30.46 &  32.84 &  -2.38 &   0.00 &          185 &          392 \\
& (12.04) & (6.15) & & & & \\
Prediction for Over 33 Workers &  30.92 &  32.47 &  -1.55 &   0.04 &          334 &          243 \\
& (9.82) & (7.66) & & & & \\
Prediction for Under 33 Workers &  33.85 &  33.09 &   0.77 &   0.31 &          243 &          334 \\
& (7.03) & (10.14) & & & & \\
\hline\hline
\end{tabular}}
